Key Features

Internal bearing design — bearings sit inboard within the frame shell for a clean finish and reduced exposure to debris.
CNC machined 7075 aluminum cups — strong, lightweight, and precise fit.
Steel ball bearings — robust and cost effective option providing reliable service life.
Silicone seals — help protect bearings from dirt and moisture ingress.
Black anodized finish — corrosion resistant and visually matches many frames.
Includes spacer kit — usually includes multiple spacers (e.g., 0.5 mm, 1 mm, and 2.5 mm options) to fine tune fit.